dircynavni lujvo

x1 is a quantity of/contains/is made of radon (Rn).

See also dirnavi, dirce, navni; ratni


In notes:

dircyjinme
x1 is radium.
dirnavi
x1 is a quantity/is made of radon [Rn].
navni
x1 is a quantity of/contains/is made of noble gas of type x2 [helium/neon/argon/krypton/xenon/radon].